Displaying 20 results from an estimated 7000 matches similar to: "Finding missing elements by comparing vectors"
2009 Jul 08
5
R regular expression to extract words with the query string.
Hi,
Is there a way in R to get the string which matches the expression, where
the expression is a substring of the parent string.
Lets say, I have $i <- "transcript:ENST0000112334 pid:ENSP000012345"
What I need is the string "pid:ENSP000012345" from $i using the query
"ENSP".
Appreciate your comments.
Praveen Surendran
School of Medicine and
2009 Oct 22
2
Replacing multiple elements in a vector !
Hi,
I have a vector with elements
rs.id=c(''rs100'',''rs101'',''rs102'',''rs103'')
And a dataframe ''snp.id''
1 SNP_100 rs100
2 SNP_101 rs101
3 SNP_102 rs102
4 SNP_103 rs103
Task is to replace
2012 Oct 29
3
Opening SAS file using read.sas7bdat() function in sas7bdat library.
Hi,
I have a file in .sas7bdat format. I tried to open this file using
read.sas7bdat() function.
This gave me an error - "Error in read.sas7bdat("bnp_genetic.sas7bdat") :
unknown host X64_7PRO".
Could someone tell me what this error means?
Thank you,
Praveen.
[[alternative HTML version deleted]]
2009 Aug 10
1
index of intersect()
Hi all,
Is there a way to get the index of elements in intersect(x,y) where x and y
are vectors with few common elements.
Appreciate your response.
Praveen Surendran.
[[alternative HTML version deleted]]
2009 Oct 14
2
Getting indeices of intersecting elements.
Hi,
Is there a command to get the indices of intersecting elements of two
vectors as intersect() will give the elements and not its indices.
Thanks in advance.
Praveen Surendran
School of Medicine and Medical Sciences
University College Dublin
Belfield, Dublin 4
Ireland.
[[alternative HTML version deleted]]
2010 May 18
1
Getting dates in an SPSS file in right format.
Dear all,
I am trying to read an SPSS file into a data frame in R using method
read.spss(),
sample <- read.spss(file.name,to.data.frame=TRUE)
But dates in the data.frame ''sample'' are coming as integers and not in the
actual date format given in the SPSS file.
Appreciate if anyone can help me to solve this problem.
Kind Regards,
Praveen Surendran
2G, Complex
2009 Jun 19
1
Alternate ways of finding number of occurrence of an element in a vector.
Hi,
I have a vector "v" and would like to find the number of occurrence of
element "x" in the same.
Is there a way other than,
sum(as.integer(v==x)) or length(which(x==v))
to do the this.
I have a huge file to process and do this. Both the above described methods
are pretty slow while dealing with a large vector.
Please have your comments.
Praveen
2005 Mar 30
5
2d plotting and colours
Hi!
I am new to R just 3 days in it and i apologize if my questions seem very
trivial and consumed your valuable time.
I am coding in perl and i stumbled upon R regarding plotting good
statistical graphs.
I tried the kmean clustering for a large matrix ,say > 150 * 150 . I tried
the example code given in the tutorial to perform 2d plot
# i ranges from 2 to 10
cl <- kmeans(x, i, 20)
2011 Aug 27
2
Am having trouble calling a function
In my main R program, I have
source("retaanalysis/Functions/doAirport.R")
.... stuff to read data and calculate ads
sapply(ads, function(x) {doAirport(x, base)} )
And doAirport has
# analyze the flights for a given airport
doAirport = function(df, base) {
# Get rid of unused runway factor levels (from other airports)
df$lrw <- drop.levels(df$lrw) # In gdata package
#
2004 Oct 17
1
FW: Plotcorr: colour the ellipses to emphasize the differences
-----Original Message-----
From: Duncan Murdoch [mailto:murdoch at stats.uwo.ca]
Sent: ned 2004-10-17 15:34
To: Gorjanc Gregor
Cc: r-help at stat.math.ethz.ch
Subject: Re: [R] Plotcorr: colour the ellipses to emphasize the differences
On Sun, 17 Oct 2004 02:51:58 +0200, "Gorjanc Gregor"
<Gregor.Gorjanc at bfro.uni-lj.si> wrote:
[removed old stuff]
>>I would also like to
2006 Aug 18
3
Lattice package par.settings/trellis.par.settings questions
Hi All,
I'm trying to modify some of the default graphic parameters in a
conditional histogram. While I was able to change the default grey
background to white, I couldn't change the axis.font or the xlab font.
I used the following code:
/histogram(~V751|V013+V025, finalbase, xlab="Heard of HIV/AIDS
(No/Yes)", col=c("cyan","magenta"),
2008 Jul 07
2
Drawing a colour wheel - bug in hcl?
Hi All,
I'm trying trying to draw a colour wheel (a slice of hcl space) in R.
Running the code below doesn't give me what I expect - there's some
oddly bright colours of the wrong hue around c(0, 0) and I see three
coloured circles (a small magenta, a medium sized yellow and a large
cyan). Am I doing something wrong or is there a bug in the hcl code?
(Also any suggestions for
2017 Nov 12
2
create waveform sawtooth
My tuneR sawtooth wave function generator is broken.
When I use the sine function, I get exactly what I expect: a sine wave whose frequency is defined by the freq parameter. In particular, higher frequencies have shorter wavelengths (more cycles per second means shorter waves). When I create a sawtooth wave, the opposite seems to occur: higher frequencies result in longer waves. But that?s not
2013 Dec 09
2
Problem with R colors
Hello,
I am having difficulty obtaining the correct colors in my R charts.
> colors()[c(552, 254, 26)]
[1] "red" "green" "blue"
But, if I specify col=552 in my barplot, I get gray bars. Likewise,
col=254 gives bright pink, and col=26 is a red-orange. I get accurate
results when I spell out the names, but I am making a pallet with 20- 30
colors and it is a
2002 May 22
1
white in the default palette
Dear All,
[I'd already sent this message earlier (Apr 6) but as I had no response
and I still see that it is the case in R1.5 I thought I'd try again]
I recently encountered a problem (actually missed some data) because
"white" is one of colours in the "default" palette and that does not
show up to well on my transparent (on white background). Of course it is
2004 Nov 26
1
problem with xyplot
Dear Rlisters,
When trying to indicate which data belong to which of 7 groups, the
following plot shows only 5 groups:
ss <- trellis.par.get("superpose.symbol")
ss$col <- c("red","blue","green","yellow","orange","magenta","cyan")
ss$pch <- format(1:7)
ss$cex <- 1.2
ss <-
2006 Dec 22
1
heatmap with levelplot?
Hi,
How do I anchor z=0 to the white color in a levelplot so that
the color changes from cyan to magenta precisely as
z changes from negative to positive? Also is it easy to change
color scheme, say to blue/red as it's more dramatic? Is there a
better function for showing heatmap with a color bar?
Thanks in advance for any help, I've played with image,
heatmap and levelplot a little and
2010 Dec 18
1
Colours for 3-way probabilities
Are there any R functions for creating palettes for three-way data?
For example, election maps for three parties where pure red, blue, and
green show 100% for the Red, Blue, and Green parties respectively,
magenta shows a 50-50 Red-Blue split with 0 for the Greens, cyan a
50-50 Blue/Green split with no Red votes and so on, with grey, black
or white at a 1/3,1/3,1/3 split vote.
I've spent a
2013 May 17
1
Problem with ordiellipse coloured factor in Vegan
Hello R experts,
I am trying to plot ordiellipse for my data but the col according to
factors.
Metabolites_raw= read.csv(file.choose(), head = TRUE) #file
21Metabolites.csv
Metabolites_t=t(Metabolites_raw[,2:82])
ord <- metaMDS(Metabolites_t, distance="bray")
symbol=as.numeric(Metab_metadata$LandType)
col.list <-
2010 Aug 16
1
xyplot - I can't find colors in my picture
Hi,
Anybody can tell me why I don't have colors in my picture?
library(lattice)
my.pch<-c(17,16,15,18,20,9,10,12)
my.fill<-c('yellow','black','green','red','blue','cyan','magenta','pink')
wzorzec1<- c(1,3,2,4,6,4,2,3)
wzorzec2<- c(5,3,6,6,2,3,4,1)
a<-factor(wzorzec1)
b<-factor(wzorzec2)